If you happen to be in Trondheim during the Olavsfestdagene (Festival Days of Saint Olav - directly translated), you should scan the program they offer for things to do. Saint Olav was a king of note in Norway long time back, who was instrumental in the process of unifying and christianizing Norway, especially the latter (others were in on it, too), and lead Norway to catholisism. St. Olav became canonized by the Roman Pope. Since Norway turned lutheran in 15-something, celebrating St Olav has been somewhat of an anachronism. However, the Trondhjemmers do this with a venegance and are throwing this big party every July. There are both secular, historic and religious elements thrown in. There are several venues and central Trondheim and the Nidaros Cathedral remain centrepieces. Check the programme on internet for this year's activities.
The St. Olav Festival in Trondheim is by far Norway’s greatest church- and culture festival. Acclaimed and popular international and Norwegian artists will fill the Nidaros Cathedral, the Arch Bishop’s Courtyard, the concert hall Olavshallen, the Masonic lodge, the Ringve Museum and Our Lady’s Church. You will have the opportunity to experience solo artists, actors and choirs develop chamber works and large oratorios in many constellations and styles. National and international artist will perform on the unique outdoor stage in the Courtyard of the Archbishop’s Palace. The Historical Fair, recreating the Middle Ages in the Courtyard, will swarm with theatre performances, games, comedians and trading. The children are offered experiences like Treasure hunt, A jousting tournament and a theatrical performance will take place in the Outer Courtyard.
The festival is fun for everyone (children, adult, old...)! In the Arch Bishop's Courtyard you can find som great souvernirs to bring back home. And I strongly recomand the night tournament! It cost 100NOK, but it is worth it! With Nidaros Cathedral in the background and people and horses dressed like it was the middel age, you almost belive it yourself!